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. 1985 Oct;5(10):2847–2850. doi: 10.1128/mcb.5.10.2847

v-src inhibits differentiation via an extracellular intermediate(s).

P R Langer-Safer, S R Lehrman, A M Skalka
PMCID: PMC367025  PMID: 3939255

Abstract

Murine 3T3L1 preadipocytes transformed by avian sarcoma virus were unable to differentiate in response to insulin or dexamethasone plus 1-methyl-3-isobutylxanthine, both potent inducers of differentiation of the nontransformed 3T3L1 parental line. Conditioned medium from transformed cells contained a relatively heat-stable factor(s) which inhibited the differentiation of untransformed parental 3T3L1 cells but did not induce any changes in their morphology. A protease-sensitive mitogen was also detected in the medium. The relationship between the two activities remains to be elucidated.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Adkins B., Leutz A., Graf T. Autocrine growth induced by src-related oncogenes in transformed chicken myeloid cells. Cell. 1984 Dec;39(3 Pt 2):439–445. doi: 10.1016/0092-8674(84)90451-3. [DOI] [PubMed] [Google Scholar]
  2. Anzano M. A., Roberts A. B., Smith J. M., Sporn M. B., De Larco J. E. Sarcoma growth factor from conditioned medium of virally transformed cells is composed of both type alpha and type beta transforming growth factors. Proc Natl Acad Sci U S A. 1983 Oct;80(20):6264–6268. doi: 10.1073/pnas.80.20.6264. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Boettiger D., Anderson S., Dexter T. M. Effect of src infection on long-term marrow cultures: increased self-renewal of hemopoietic progenitor cells without leukemia. Cell. 1984 Mar;36(3):763–773. doi: 10.1016/0092-8674(84)90356-8. [DOI] [PubMed] [Google Scholar]
  4. Bowen-Pope D. F., Vogel A., Ross R. Production of platelet-derived growth factor-like molecules and reduced expression of platelet-derived growth factor receptors accompany transformation by a wide spectrum of agents. Proc Natl Acad Sci U S A. 1984 Apr;81(8):2396–2400. doi: 10.1073/pnas.81.8.2396. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Brugge J. S., Erikson R. L. Identification of a transformation-specific antigen induced by an avian sarcoma virus. Nature. 1977 Sep 22;269(5626):346–348. doi: 10.1038/269346a0. [DOI] [PubMed] [Google Scholar]
  6. Collett M. S., Erikson R. L. Protein kinase activity associated with the avian sarcoma virus src gene product. Proc Natl Acad Sci U S A. 1978 Apr;75(4):2021–2024. doi: 10.1073/pnas.75.4.2021. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Eisenman R., Vogt V. M., Diggelmann H. Synthesis of avian RNA tumor virus structural proteins. Cold Spring Harb Symp Quant Biol. 1975;39(Pt 2):1067–1075. doi: 10.1101/sqb.1974.039.01.122. [DOI] [PubMed] [Google Scholar]
  8. Green H., Kehinde O. An established preadipose cell line and its differentiation in culture. II. Factors affecting the adipose conversion. Cell. 1975 May;5(1):19–27. doi: 10.1016/0092-8674(75)90087-2. [DOI] [PubMed] [Google Scholar]
  9. Green H., Kehinde O. Spontaneous heritable changes leading to increased adipose conversion in 3T3 cells. Cell. 1976 Jan;7(1):105–113. doi: 10.1016/0092-8674(76)90260-9. [DOI] [PubMed] [Google Scholar]
  10. Greenberger J. S., Davisson P. B., Gans P. J. Murine sarcoma viruses block corticosteroid-induced differentiation of bone marrow preadipocytes associated with long-term in vitro hemopoiesis. Virology. 1979 Jun;95(2):317–333. doi: 10.1016/0042-6822(79)90487-2. [DOI] [PubMed] [Google Scholar]
  11. Kawai S. Transformation of rat cells by fusion-infection with Rous sarcoma virus. J Virol. 1980 Jun;34(3):772–776. doi: 10.1128/jvi.34.3.772-776.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Rubin C. S., Hirsch A., Fung C., Rosen O. M. Development of hormone receptors and hormonal responsiveness in vitro. Insulin receptors and insulin sensitivity in the preadipocyte and adipocyte forms of 3T3-L1 cells. J Biol Chem. 1978 Oct 25;253(20):7570–7578. [PubMed] [Google Scholar]
  13. Sugimoto Y., Whitman M., Cantley L. C., Erikson R. L. Evidence that the Rous sarcoma virus transforming gene product phosphorylates phosphatidylinositol and diacylglycerol. Proc Natl Acad Sci U S A. 1984 Apr;81(7):2117–2121. doi: 10.1073/pnas.81.7.2117. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Wise L. S., Green H. Participation of one isozyme of cytosolic glycerophosphate dehydrogenase in the adipose conversion of 3T3 cells. J Biol Chem. 1979 Jan 25;254(2):273–275. [PubMed] [Google Scholar]
  15. van Zoelen E. J., Twardzik D. R., van Oostwaard T. M., van der Saag P. T., de Laat S. W., Todaro G. J. Neuroblastoma cells produce transforming growth factors during exponential growth in a defined hormone-free medium. Proc Natl Acad Sci U S A. 1984 Jul;81(13):4085–4089. doi: 10.1073/pnas.81.13.4085. [DOI] [PMC free article] [PubMed] [Google Scholar]

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